Cosmetic pen with continuously discharging mechanism

ABSTRACT

A cosmetic pen with continuously discharging mechanism comprises: an elongate body with a pen head coupled at one end thereof. The elongate body comprises a material-pushing assembly, a driving assembly, a material bin and a check valve; the material-pushing assembly includes a central shaft coupled to the driving assembly at one end, and a spiral blade attached thereto at the other end; when the spiral shaft is driven by the driving assembly, material stored within the material bin is extruded by the spiral motion of the spiral blade toward the pen head so as to provide a steady supply of material to the pen head to facilitate smooth and continuously deployment of the material through the pen head; and the amount of released cosmetic material is controlled by controlling rotation number of the spiral blade, thus preventing waste.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of International Patent ApplicationNo. PCT/CN2019/082196 with a filing date of Apr. 11, 2019, designatingthe United States, now pending, and further claims priority to ChinesePatent Application No. 201810345421.6 with a filing date of Apr. 17,2018. The content of the aforementioned applications, including anyintervening amendments thereto, are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to the field of cosmetic products, andparticularly to a cosmetic pen with continuously discharging mechanismfacilitating steady output of material, such as nail polish, from abrush thereof.

BACKGROUND OF THE PRESENT INVENTION

With improvement of living standards, the beauty industry is flourishingday by day. Among the cosmetic products, nail polish and gel are themost commonly used.

Most of the prior nail polish and gel containers are in the form of nailpolish bottles. Generally, the nail polish bottle includes a bottle bodyand a cover with a brush. Nail polish is taken out mainly by a stylistor user dipping in the nail polish bottle with the brush on the cover,and the nail polish can only be siphoned out of the bottle one afteranother in an amount no larger than the brush, continuous applicationmay not be completed due to the small brush head and the small andlimited amount of dipped nail polish. When the stylist applies the nailpolish, the bottle is open and the nail polish stored in the bottle canbe easily contaminated and vaporized. After the application of the user,when the brush is put back, the nail polish clogged at the bottleopening can be easily squeezed out due to the small bottle opening, andwaste is caused; in addition, since the brush is quite small, when thematerial in the bottle is siphoned out to a certain degree, the brushreach to the bottom of the bottle, and the nail polish remained thereinmay not be siphoned out by the brush, such that waste is caused.

Chinese patent publication No. CN 204499789 U discloses a nail oilbottle of sustainable fuel feeding. When the device is used, a syringeis used for extracting nail polish in the bottle body, then the bottlelid is taken off, and when the nail polish at the brush head is less orused up, the syringe is slowly pressed to supplement the nail polish tothe brush head.

The device has the defects that the hollow connecting rod has a smallerdiameter due to the limitation of the size of the brush head, and thesince the nail polish is thicker, it is difficult for the user toextract the nail polish using the syringe. When the polish issupplemented by pressing, the user is required to make great strength;in addition, the nail polish is easily vaporized and may haveparticulate components, which may easily cause clogging.

Chinese patent publication No. CN 204467299 U discloses a nail enamelbottle capable of supplying sustainable fuel feeding. In use, nailpolish is sucked into the connecting rod through an air bag, and thenail polish at the brush is supplemented through extruding the air bag.The nail enamel bottle has the following disadvantages. Firstly, the airbag is easy to break and age; secondly, the aperture of the connectingrod is small and it is difficult to suck; in addition, clogging iseasily caused due to the small aperture.

For the two above-mentioned devices, the bottle body and the brush areseparated from each other, and the problem of volatilization orpollution of the material in the bottle in use may not be solved. Duringtransportation and storage, the nail polish may leak out since thebottle cap is not screwed down. After use, when the brush is put back tothe bottle body, the nail polish is easy to leak. The hollow connectingrod is easy to clog due to the limitation of its aperture; since acertain gap exists between the brush and the bottle bottom, when thenail polish is less, the brush is inconvenient to dip in or get, and thehollow connecting rod may not absorb the material.

Chinese patent publication No. CN 206365596 U discloses a nail polishpen which drives an inner tube to rotate by pressing the button on theside of the pen body, realizes the communication of the nail polish andthe brush by rotation, and controls the amount of released nail polishby the movement amount of the button or the inner tube or the crosssection area of the accommodating chamber. The nail polish pen has thedefects that the nail polish flows down mainly depending on gravity, thenail polish is thick and has poor fluidity, and when no external thrustis designed, the flow-down speed and the flow rate are both very lowdepending on the gravity.

Chinese patent publication No. CN 201541963 U discloses a nail polishpen, which realizes the communication between the nail polish cylinderand the brush by means of the controlled nail polish outlet device, andenables nail polish to flow to the brush by means of gravity. The nailpolish pen has the defects that the nail polish is thick with poorfluidity, and the flow-down speed and the flow rate are low depending ongravity when no external thrust is designed.

In view of the above-mentioned defects of the existing devices, there isa need for improvement of the existing devices.

SUMMARY OF PRESENT INVENTION

In order to overcome the defects of the above-mentioned existingdevices, an objective of the present disclosure is to provide a cosmeticpen with continuously discharging mechanism, which may realize theintegration of the elongate body and the brush, avoid the volatilizationor pollution of the material, control the continuous output of thematerial by a user as needed and increase the operation convenience andefficiency.

In order to achieve the above-mentioned object, the following technicalsolution is adopted in the present disclosure. The present disclosureprovides a cosmetic pen with continuously discharging mechanism,including: an elongate body with a pen head coupled at one end thereof,the elongate body includes a material-pushing assembly, a drivingassembly, a material bin and a check valve; the material-pushingassembly comprises a central shaft coupled to the driving assembly atone end, and a spiral blade attached thereto at the other end; when thecentral shaft is driven by the driving assembly, material store withinthe material bin is extruded by spiral motion of the spiral blade towardthe pen head so as to provide a steady supply of material to the penhead to facilitate smooth and continuously deployment of the materialthrough the pen head.

When the central shaft rotates, the spiral blade is driven to rotate,and when the spiral blade rotates, the material in the material bin incontact with the blade may be pushed continuously, such that thematerial is fed continuously for a discharge outlet; and the spiralblade and the central shaft have small volumes, such that the volume ofthe material bin may be effectively utilized to contain more materials;the spiral blade is in clearance fit with a wall of the material binalong a radial direction.

The spiral blade has a cylindrical overall configuration or a conicaloverall configuration.

The spiral blade is a left-handed spiral blade or a right-handed spiralblade. In the case where the spiral blade is a left-handed spiral blade,if the blade rotates clockwise when looking down from the top end of theelongate body, the blade generates a thrust on the material to feed; inthe case where the spiral blade is a right-handed spiral blade, if theblade rotates anticlockwise when looking down from the top end of theelongate body, the blade generates a thrust on the material to feed.

The driving assembly is comprises a battery, a driving motor and a powerswitch; using the motor to drive, a user may control the number of turnsthat the blade rotates by pressing the switch on the side of theelongate body and controlling ON duration of the switch, therebyaccurately controlling the amount of released material, realizingone-hand continuous operation, saving time for the user, and preventingwaste.

The driving structure may also be a rotary knob at the tail of theelongate body. In the case of manual rotation driving, the user onlyneeds to rotate the tail of the elongate body when the material at thepen head is insufficient, such that the spiral blade may be driven torotate, and continuous discharging at the pen head is achieved. Bycontrolling the number of turns, the amount of released material isaccurately controlled, and the waste is prevented.

As the battery, a small-volume battery is adopted, including a buttonbattery or other batteries.

The driving motor includes a low-voltage direct current motor and areduction gear set.

The power switch is located on a side surface of the elongate body, suchthat the power switch is convenient for the user to press; the powerswitch may be embedded into the wall of the elongate body or aprotective sleeve is added to prevent misoperation due to the turn-onpower by accident.

The material in the material bin is any non-solid cosmetic material,such as watery, milky, oily, pasty, gel-like.

The pen head may comprise an anti-overflow valve and a brush.

The anti-overflow valve is mainly composed of a valve, an anti-overflowball and a spring; when the anti-overflow ball is not stressed, theanti-overflow ball is pressed against the spring elastically to betightly attached to the valve, such that a closed anti-overflow effectis achieved; when pushed by the material, the anti-overflow ballovercomes an elastic force of the spring to be separated from the valve,and the material enters the brush.

The check valve is located at an upper end of the central shaft, and thecentral shaft penetrates through the center of the check valve and isfixed on an inner wall of the elongate body; the check valve is fixed onthe inner wall of the elongate body and does not rotate along with thecentral shaft; the central shaft is tightly combined with the checkvalve; the check valve is designed to be a one-way check valve, and thematerial in the material bin may not overflow outwards through the checkvalve, but air may enter when an air pressure in the material bin is thesame as the air pressure outside the elongate body, the check valve isin the closed state, and when the air pressure in the material bin isless than the air pressure outside the elongate body, atmosphere may getinto the material bin through the check valve to balance the airpressure in the material bin.

The pen head is coupled to the elongate body in a threaded structure orin a manner of interference, which realizes effective sealing, and inuse, the material in the material bin may be neither exposed, norpolluted or volatilized.

The pen cap is may be coupled to the pen head in a threaded structure orin a manner of interference; when not in use, the pen is covered withthe pen cap, such that the effective sealing is realized, and the brushis effectively protected.

In conclusion, the cosmetic pen with continuously discharging mechanismaccording to the present disclosure has the following advantageouseffects. The integration of the elongate body and the brush is realized,the material is prevented from being volatilized or polluted, the usermay control the continuous output of the material as required, andoperation convenience and efficiency are increased.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a sectional view of a cosmetic pen according to a firstembodiment of the present disclosure;

FIG. 2 is a sectional view of a cosmetic pen according to a secondembodiment of the present disclosure;

FIG. 3 is a sectional view of a cosmetic pen according to a thirdembodiment of the present disclosure; and

FIG. 4 is a sectional view of a cosmetic pen according to a fourthembodiment of the present disclosure.

DETAILED DESCRIPTION OF THE DRAWINGS

It should be understood that the specific embodiments described hereinare merely to explain the present disclosure and do not limit thepresent disclosure.

Specific embodiments of the present disclosure are described in furtherdetail below with reference to the accompanying drawings.

FIG. 1 shows a preferred embodiment, i.e., the first embodiment, of acosmetic pen with continuously discharging mechanism according to thepresent disclosure. The present disclosure relates to a cosmetic penwith continuously discharging mechanism, including: a pen body 3, a penhead 5 and a pen cap 4.

The pen body 3 includes a material-pushing assembly which is mainlycomposed of a left-handed spiral blade 1 having a cylindrical overallconfiguration and a central shaft 11; a driving assembly which is mainlycomposed of a battery 24 in a battery bin 23, a low voltage motor 2, areduction gear set 21 and an embedded switch 25; a material bin 6; and acheck valve 7.

The pen head may be internally provided with an anti-overflow assemblyand a brush. The anti-overflow assembly is composed of a hollow valve51, an anti-overflow ball 52 and a spring 53. The anti-overflow assemblymay also be arranged at a lower portion of the material bin 6.

The pen head 5 is coupled to the pen body 3 by means of threads; the pencap 4 is coupled to the pen body 3 by means of threads; the cylindricalspiral blade 1 is in clearance fit with an inner wall of the pen body 3;two ends of the central shaft are coupled to the spiral blade and thereduction gear set respectively.

In the present embodiment, the spiral blade is a left-handed spiralblade.

In actual use, any non-solid cosmetic material, such as watery, milky,oily, pasty, gel-like, or the like, may be filled in the material bin 6.A user presses the switch 25 to enable the low voltage motor 2 to rotateclockwise as shown in the rotation direction 8 to reduce the speedthrough the reduction gear set 21, so as to drive the central shaft 11to rotate, the central shaft penetrates through the check valve 7 todrive the spiral blade 1 to rotate clockwise. When the spiral blade 1rotates, a thrust towards the pen head is generated on the material inthe material bin 6, and the anti-overflow ball 52 is opened by thematerial, such that the material enters the pen head to the brush 55,and the user may start cosmetic operation; at this point, the airpressure in the material bin is reduced due to the release of thematerials, and the air enters the material bin from the check valve tobalance the air pressure in the material bin.

When the amount of the material in the brush is enough, the switch 25 isturned off, the low voltage motor 2 stops rotating, and the spiral blade1 stops rotating; the thrust of the spiral blade 1 to the materialdisappears, the anti-overflow ball resets under the force of the spring,the valve is closed, and the material stops being outputted.

After use, the user wipes the residual material on the brush, and screwsthe pen cap 4 to keep well the cosmetic pen.

FIG. 2 shows another embodiment, the second embodiment, of the cosmeticpen with continuously discharging mechanism according to the presentdisclosure. The second embodiment is substantially the same as the firstembodiment, and mainly differs from the first embodiment in that aconical spiral blade 10 is used as the spiral blade. In this way, thepressure of pushing the material close to the pen head may be increased,which facilitates the releasing of the material, and other principlesand operations are the same as those of the first embodiment.

FIG. 3 shows another embodiment, the third embodiment, of the cosmeticpen with continuously discharging mechanism according to the presentdisclosure. The third embodiment is substantially the same as the firstembodiment, and mainly differs from the first embodiment in that thedriving mechanism is provided with a rotary knob 22, instead of thebattery, the low voltage motor, the reduction gear set and the switch,such that the structure is simplified, and electric drive is replacedwith manual drive; other principles are the same as those in the firstembodiment. In used, the rotary knob at the tail of the elongate body ismanually rotated clockwise, and the material may be pushed to the brushat the pen head by the spiral blade.

FIG. 4 shows another embodiment, the fourth embodiment, of the cosmeticpen with continuously discharging mechanism according to the presentdisclosure. The fourth embodiment is substantially the same as the firstembodiment, and mainly differs from the first embodiment in that theconical spiral blade 10 is used as the spiral blade, and the rotary knob22 manually driven is adopted, which reduces production costs, andincreases the pushing pressure of the pen head. Other principles are thesame as those of the first embodiment. In use, the rotary knob at thetail of the pen body is manually rotated clockwise, and the material maybe pushed to the brush at the pen head by the spiral blade.

In all the embodiments, the left-handed spiral blade is adopted, andfeeding may be completed when the central shaft rotates clockwise asshown in the rotation direction 8 in FIGS. 1-4. If a right-handed spiralblade is adopted, the central shaft is rotated anticlockwise in theopposite direction of the rotation direction 8, so as to completefeeding.

To sum up, in the cosmetic pen with continuously discharging mechanismaccording to the present disclosure, the brush is integrated with thepen body, such that material pollution and waste caused by separation ofthe brush and the pen body are avoided; the spiral blade in the pen bodyis driven electrically or manually to push the material to be releasedto the brush, such that continuous feeding may be realized, and theoperation efficiency of the user is increased.

The above-mentioned description is a preferred embodiment of the presentdisclosure, and for those skilled in the art, variations andmodifications may be made without departing from the spirit of thepresent disclosure, and shall be deemed to be within the protectionscope of the present disclosure.

I claim:
 1. A cosmetic pen with continuously discharging mechanism,comprising: an elongate body with a pen head coupled at one end thereof,wherein the elongate body comprises a material-pushing assembly, adriving assembly, a material bin and a check valve; the material-pushingassembly comprises a central shaft coupled to the driving assembly atone end, and a spiral blade attached thereto at the other end; when thecentral shaft is driven by the driving assembly, material store withinthe material bin is extruded by spiral motion of the spiral blade towardthe pen head so as to provide a steady supply of material to the penhead to facilitate smooth and continuously deployment of the materialthrough the pen head.
 2. The cosmetic pen according to claim 1, whereinthe spiral blade has a cylindrical overall configuration or a conicaloverall configuration.
 3. The cosmetic pen according to claim 1, whereinthe driving assembly comprises a battery, a driving motor and a powerswitch.
 4. The cosmetic pen according to claim 3, wherein the drivingmotor comprises a low-voltage direct current motor and a reduction gearset.
 5. The cosmetic pen according to claim 3, wherein the power switchis located on a side surface of the elongate body, such that the powerswitch is convenient for a user to press.
 6. The cosmetic pen accordingto claim 1, further comprising an anti-overflow assembly, wherein theanti-overflow assembly is arranged in the pen head or a low portion ofthe material bin.
 7. The cosmetic pen according to claim 1, wherein thecheck valve is located at an upper end of the material bin.
 8. Thecosmetic pen according to claim 1, wherein the check valve is a one-wayvalve to allow air enter into the material bin while prevent thematerial in the material bin from flowing out.